IsuzuPickup1990Overview/isuzu/pickup/1990/base/

1990 Isuzu Pickup

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1990 Pickup.

The 1990 Isuzu Pickup anchors a relatively thin reliability record, with just 10 owner complaints on file and two recalls issued against the model year. Within that complaint set, vehicle speed control stands out as the most frequently cited problem area — a pattern worth weighing for anyone tracing issues across the truck's production run. Set against the surrounding years in Isuzu's documented complaint history, which spans 1992 through 1995 and swings from a low of 6 complaints in 1993 to a peak of 21 in 1994, the 1990 model reads as a quieter starting point before the brand's mid-decade uptick. For researchers, that positioning makes it a useful baseline: a lower-volume complaint year that helps contextualize which problems were persistent platform traits and which were tied to specific later model years.

Model year199519941993199219911990198919881987

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine GL-5 in the differential, GM Part No. 12377967 brake fluid.

Lubricants & capacities

Brake FluidGM Part No. 12377967
Differential Gear OilGL-5
Differential Gear Oil Capacity3.2 Pints,
Engine CoolantETHYLENE GLYCOL
Power Steering FluidATF
Transfer Case Fluid5W-30
Transfer Case Fluid Capacity3.2 Pints

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 7,500 mi; spark plugs every 30,000 mi.

At 7,500 miDriveshaft Flange Yoke (torque) · Engine Oil Filter (replace) · Universal Vehicle Operation (inspect idle speed)
Every 7,500 miBattery (inspect electrolyte level) · Body Latches, Locks & Hinges (inspect) · Brake Hydraulic System (inspect fluid level) · Brake Line (inspect) · CV Joint Boot (inspect) · Clutch Assembly (inspect)
At 15,000 miDrive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill)
Every 15,000 miBrake Linings (inspect) · Brake Pedal Assembly (inspect) · Clutch Pedal Assembly (inspect) · Cruise Control System (inspect) · Drive Axle Assembly (drain & refill) · Driveshaft Flange Yoke (torque)
Every 30,000 miAccessory Drive Belt (inspect) · Choke System (inspect) · Clutch Hydraulic Line (inspect) · Drive Axle Assembly (drain & refill) · Engine Air Filter Element (replace) · Spark Plugs (replace)
At 60,000 miDrive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill)
Every 60,000 miAir Conditioning Condenser (inspect) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Radiator (inspect) · Spark Plug Wires (inspect)
Every 90,000 miOxygen Sensor (replace)
At 120,000 miUniversal Vehicle Operation (inspect idle speed)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The federal record shows that complaints for the Isuzu Pickup rose sharply from 12 in 1992 to a peak of 21 in 1994 before falling to 11 in 1995, while recalls increased from one in 1992–1993 to two per year in 1994–1995, indicating a growing reliability concern through the mid‑1990s. Investigations appeared only in 1994 and 1995 (two each), suggesting that issues identified earlier in the generation began to attract formal scrutiny at that point. For the target year 1990, the dataset does not provide total complaint or recall counts, but the listed top complaint areas—Vehicle Speed Control, Seat Belts, Service Brakes (Hydraulic), and Power Train—each registered only one or two reports, implying relatively few problems were recorded. Because the 1990 model sits before the upward trend in complaints and recalls that emerged in the early‑1990s, it is likely a more reliable year within the generation. **Takeaway: 1990 appears to be a comparatively safe year to purchase, pending a detailed mechanical inspection.**

2
Open recalls
NHTSA campaigns
4
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
10
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 10 complaints on record, top 7 components.

Vehicle Speed Control2
Seat Belts2
Service Brakes, Hydraulic2
Power Train1
Tires1
Fuel System, Gasoline1
Wheels1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

06E026000Exterior LightingReported 23/03/2006

CERTAIN PRO-A MOTORS CORNER LAMPS, TURN SIGNALS, AND HEADLIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON CERTAIN PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH AMBER SIDE REFLECTORS FAIL… Remedy: PRO-A MOTORS WILL NOTIFY OWNERS AND OFFER TO REPURCHASE THE LAMPS. THE RECALL BEGAN ON APRIL 3, 2006. OWNERS MAY CONTACT PRO-A MOTORS AT 323-838-2988.

95V103009Seat Belts:Front:Buckle AssemblyReported 24/05/1995

THE FRONT SAFETY BELT BUCKLE RELEASE BUTTONS CAN BREAK. THESE RED PLASTIC RELEASE BUTTONS ARE MARKED "PRESS." IF A BUTTON BREAKS, PIECES CAN FALL INTO THE BUCKLE ASSEMBLY CAUSING THE BUCKLE TO OPERATE IMPROPERLY. Remedy: OWNERS SHOULD PROMPTLY CHECK THE CONDITION AND OPERATION OF BOTH FRONT SAFETY BELT BUCKLES AND CAREFULLY INSPECT THE RED RELEASE BUTTON FOR ANY BREAKS OR CRACKS. THEY SHOULD…

Technical service bulletins NHTSA · verified

Showing 4 of 4 bulletins on record with NHTSA.

BulletinDateComponentSummary
IB13-R-001G2023-05-08Unknown Or OtherThis bulletin outlines the procedures for using the Alpine Exchange Program (the…
WB13-X-001B2022-08-30EquipmentIsuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural…
WB13-X-001A2022-08-02EquipmentIsuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural…
SB0012S0022000-03-01EquipmentTHIS TECHNICAL SERVICE BULLETIN OUTLINES THE DETAILED PROCEDURES FOR THE AIR CONDITIONING…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Pickup. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

Does the 1990 Pickup have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.